Tap or other valve



0. o. LININDOLL. TAP OR OTHER VALVE.

(No Model.)

No. 555,174. Patented Feb. 25, 1896.

INVENTOR: %M 4 [M Attorneys,

WITNESSES: M 45w x? ANDREW BLMMAM llrvrrnn STATES PATENT Orrrcn.

CHARLES C. LININDOLL, OF FORT EDIVARD, NEIV YORK.

TAP OR OTHER VALVE.

SPECIFICATION forming part of Letters Patent No. 555,174, dated February25, 1896.

Application filed August 12, 1895. Serial No. 558,975. (No model.)

To all whom it may concern:

Beitknown that I, CHARLES C. LININDOLL, a citizen of the United States,and a resident of Fort Edward, Washington county, New York, haveinvented certain new and useful Improvements in Taps or other Valves, ofwhich the following is a specification.

This invention relates to taps and other valves, and particularly tapsor faucets for withdrawing liquids-such as beer, ale, and the likefromcasks or other receptacles.

Various constructions for this purpose have heretofore been employed,the most common of which comprises a thimble which is screwed into thebarrel-head, a valve-casing attached to the barrel by screwing it intothis thimble and having a valve-seat within the barrel, a rotary gate orvalve proper swiveled to this casing, a spigot having a separablecoupling connecting it to the casing and a tubular-key engaging the gateand opening the valve as the spigot is rotated to couple it to thecasing and closing the valve on the reverse or uncoupling rotation ofthe spigot.

My present invention aims to provide certain improvements in taps andthe like which operate on this general principle, and to this end Iprovide certain novel features of construction, arrangement andcombination which will be fully hereinafter set forth.

In the accompanying drawings, which illustrate the preferred adaptationof my invention, Figure 1 is a fragmentary section of a barrel-head,showing my improved tap in axial section applied thereto and in the openposition and the discharge or draw-off pipe or spigot in elevation andapplied to the tap. 2 is a vertical cross-section thereof cut on theline 2 2 in Fig. 1, showing the key in end elevation; and Fig. 3 is anend elevation of the stem and valve Q in the open position.

Referring to the drawings, let A represent a barrel-head; a, a holetherethrough; B, the thimble or casing of the tap; O, the valve properthereof; D, the stem of the latter; E, the draw-off or key, and F thehandle of the latter. These parts in their general features are of usualconstruction and of well-known operation.

The key E may be any suitable member for operating the valve, beingusually tubular and having flat or other faces 0 engaging reciprocalflats or faces d on the stem, whereby the key and valve are lockedtogether and the latter may be turned to the open or closed position bythe former. To couple the key to the thimble the thimble has a socket ecarrying diametrically-opposite inwardly-projecting pins f, and the keyhas diametrically-opposite tapering grooves g, which receive the pins fwhen the key is passed into the casing and by a quarter-turn lock thekey to the casing. As usual, the casing B has an eX- ternal thread itscrewing into the hole a and thereby coupling the tap to thebarrel-head. The outer face, 2', of the tap comes substantially flushwith the corresponding face of the barrel-head, and the outer end of thetap substantially fills the outer part of the hole a.

According to my improved construction the casing B has a reduced innerend having an external screwthread j, and the valve-seat G is formed ina separate cap H, having an internally screw threaded forwardlyprojecting flange 10, the thread of which screws on the thread j of thecasingwith a tight fit, thus closing the inner end of the casing againstoutlet through the tap except at the valve-seat. The seat G is formed asa disk-like web or bridge crossing the interior of the cap H, and hasflat seating-faces at its opposite sides, the outer one lettered Z andthe inner one lettered m between which faces are two ducts orvalve-openings a, which are arc-shaped and equally distant from acircular central bearing 0, which traverses the seat axially. Theseating-face l is preferably a composition or other packing materialface, and is formed by providing a recess 1) at the outer side of thecap and pressing or otherwise fixing in this recess a washer q, the faceof which is flush with the outer edge 7* of the cap.

Internally the inner end of the casing B is constructed with acylindrical chamber I, eX- tending from the inner face, m, of the seatinwardly to an annular bridge or shoulder J, and having a slightshoulder .9 near the seat and a slight enlargement 25 between thisshoulder and the seat, and a flat end face a at the bridge J. Throughthe bridge is a circular passage K leading from the chamber I totheouter socket e, and at the junction of this passage and socket is anannular packingring 1*.

The valve proper, C, may be any suitable rotary or oscillating disk orgate. I prefer to construct it as an annular disk having a flatseating-face w, embracing the face Z of the seat, and two arc-shapedducts cc coinciding in shape and position to the ducts n, and when inone position giving communication through the valve, and when turned outof coincidence with the latter ducts closing communication therethrough.Except where traversed by the ducts the valve-disk is a completeimperforate disk, and its diameter is preferably equal to that of thepackingdisk q, preferably corresponding to the diameter of the socket17, so that the packing-disk is completely covered and protected by thevalve-disk, and in case any wear occurs the latter can follow thepacking-disk inwardly of its recess. Centrally the valvedisk isconnected to its stem in any suitable manner to insure a rotary movementof the valve with the stem. This is best accomplished by forming thevalve-disk with a square hole a receiving the squared part 11 of thestem. Be yond this hole the valve-disk has a boss having anoutwardly-opening socket b. In this socket is an annular packing c,which surrounds the cylindrical screw-threaded end (1 of the stem,making a leak-tight joint at this point. This packing and the valve-diskare both held in position on the stem by a wrench-nut L, screwed on theend of the stem against the packing, and this nut is locked by alock-nut M screwed 011 the stem against it. The nut L has a smoothannular face outside its wrench-faces at rear, and the locknut M has asocket 6 receiving and inclosing the rear of the wrench-nut and anannular wall surrounding this socket embracing the annular rear face ofthe wrench-nut. The lock-nut is preferably imperforate, thescrewthreaded hole in it terminating in advance of its rear wall, sothat it constitutes an inclosing cover for the nut L and end of thestem. As shown, it has a reduced rearwardly-en tending head N, which isnotched for the screw-driver.

One feature of improvement resides in the construction and applicationof the sieve P, which is a perforated substantially hemispherical memberextending from the flange r outwardly and inclosing the valve disk andnuts, and having centrally an aperture f which passes over the head M ofthe lock-nut. The strainer is secured in place by slightly opening thenotch in this head, so that the sides of the latter are expanded at theouter side of the strainer. By the reverse operation the strainer isreleased and may be removed.

Another feature of improvement comprises an auxiliary valve-disk Q atthe inner side of the seat G and a tubular valve-stem D through whichthe discharge from the valve passes. The valve Q rotates with the disk 0and has a smooth annular face g engaging the face m of the seat G. It istraversed by ducts 'i, corresponding substantially in shape and positionwith the ducts through the seat and the disk O and is coupled to thelatter to rotate therewith. The valves C and Q are adjusted toward andfrom each other to give the desired friction and fit against theopposite faces of the seat G, being connected by the cylindrical spindleh of the stem, which spindle fits and turns in the cylindrical aperture0 through the seat.

The stem D and valve Q are preferably formed as a single piece, and thestem is eonstructed with a hollow or tubular interior R, extending fromthe ducts i outwardly and terminating in a contracted neck j, partiallycylindrical, and there coinciding with the aperture K through the bridgeJ, and at its opposite sides having fiat or equivalent faces (Zreciprocal to and coinciding with the faces 0 of the key E. Externallythe stem is preferably constructed as a cylinder S, snugly fitting thesocket I of he casing. This cylinder has a slightly-enlarged cylindricalpart k fitting the corresponding enlargement at the outer part of thesocket and a shoulder l seating on the shoulder s and clampedthereagainst by the screwing up of the cap H. The end of the stem seatsagainst the inner wall of the bridge J.

By this construction the discharge through the valve'is all receivedwithin the stem and delivered from the interior of the latter into thetubular conduit m of the key, spigot or other discharge used with thetap. The valvestem makes a sufficiently tight fit with the easing toordinarily prevent the passage of any of the contents of the caskbetween the stem and easing. This is prevented by the face of the valveQ at one end and by the face a of the stem, which makes a tight fit withthe face to of the shoulder J at the other end. The packing c betweenthe casing and key prevents leakage between these parts. 7

The provision of two valves, one at each side of the seat, greatlyincreases the security of the tap against leakage, while not requiringsuch pressure of the valve-faces against the seat as will interfere withthe free working of the tap.

It will be seen that my improvements provide a simple, strong, andeffective tap or valve, and it will be understood that the invention isnot limited to the particular details of construction or combination offeatures, nor to use with the particular character of valve, describedand shown as embodying the preferred form of the invention, since it canbe availed of according to such modifications of the structural details,such combination of bination with a screw-threaded cap screwing on theend of said casing and having a transverse valve-seat, a valve engagingsaid seat and controlling communication therethrough, a stem for saidvalve fixed thereto and extending toward the front of said casing,having a cylindrical part bearing and turning in said cap, and havinginwardly of said seat key-faces by which it may be turned by a key tooperate the valve, and said cap having an axial, cylindrical aperturereceiving and rotatively holding the cylindrical part of said stem.

2. In taps and the like, a tubular casing having a screw-threaded innerend, and an inner chamber open at its rear, in combination with a capscrewed to the inner end of said casing and having a valve-seatextending at right angles to the axis and closing the rear end of saidchamber, and an axial aperture, a rotary valve within said chamberengaging said valve-seat, a stem fixed to said valve and turning thelatter, having a cylindrical part traversing and rotating in saidaperture in said cap and fastened thereto axially at the rear sidethereof, and having key-faces by which it can be turned by a key, saidcap separable from said casing by unscrewing it therefrom, whereby saidcap, valve and stem can be separated from said casing withoutdisconnecting them from each other.

3. In taps and the like, a casing having a cylindrical part If at itsinner end and a shoulder 3 forwardly of said part, in combination with avalve fitting said cylindrical part, seating on said shoulder, rotative,and having a valve-face toward the inner end of said cas ing, avalve-seat separably connected to the inner end of said casing andhaving a face embracing the face of said valve, means for turning saidvalve, and a tubular conduit from said valve to the outlet from saidcasing.

&. In taps and the like, a casing B having a hollow interior I, incombination witha stem 1) consisting of a hollow cylinder fitting theinterior of said casing having an aperture j at one end and a valve Q atits other end, and a valve-seat G engaging said valve Q and carried bysaid casing, and means for rotating said valve and stem.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

CHARLES C. LININDOLL.

Witnesses GEORGE H. FRASER, TrroMAs F. WALLACE.

